{"id":745,"date":"2016-05-13T15:42:30","date_gmt":"2016-05-13T19:42:30","guid":{"rendered":"http:\/\/blog.uvm.edu\/cwcallah\/?page_id=745"},"modified":"2016-06-09T15:49:43","modified_gmt":"2016-06-09T19:49:43","slug":"pump-and-pipe-pressure-calculator","status":"publish","type":"page","link":"https:\/\/blog.uvm.edu\/cwcallah\/pump-and-pipe-pressure-calculator\/","title":{"rendered":"Pump and Pipe Pressure Calculator"},"content":{"rendered":"

This calculator<\/a> determines the flow and pressure relationship of a piping or plumbing system and an associated pump.\u00a0 It has been designed to mainly support those who are designing hot water heating systems who are trying to determine the right size pipe or tube and the right circulator pump.<\/p>\n

\"Dave<\/a>
Dave Marchant (Riverberry Farm, Fairfax, VT) explains some of the features of his hot water biomass heating system during a twilight meeting.\u00a0 The system includes several circulators and underground (root zone) heating with PEX tubing.<\/figcaption><\/figure>\n

The system flow rate can be entered directly (GPM) or the user can specify an intended heat transfer rate (BTU\/hr) and supply temperature (F) and assumed temperature loss to have the tool determine the flow rate (GPM).<\/p>\n

Drop down menus allow the selection of pipe size and circulation pump.\u00a0 Other system details are entered into cells as needed including, pipe length, number of elbows, net elevation change (if an open system) and “other” pressure drop such as a heat exchanger.<\/p>\n

<\/a>
Pump and Pipe User Interface Screen.<\/figcaption><\/figure>\n

The tool determines the pressure drop (ft) of the piping system at several flow rates (GPM), plots this information with pump head (or pressure rise in ft) and flow (GPM), and determines the likely system operating point (GPM, ft) given the combined system.\u00a0 Different pumps can be selected to determine the pump best sized for the system.<\/p>\n

An overview of pump and pipe sizing and interactions can be found in the article, Solar Water Pumping Basics<\/a> on the UVM New Farmer Project Website<\/a>.<\/p>\n

If you have specific pipe types or sizes, additional pumps you’d like to have included or general questions or feedback please let me know<\/a>.<\/p>\n

Currently the calculator includes the following pumps listed in order of half flow capacity. (Half flow capacity noted with the prefix “F” in parenthesis along with half pressure capacity with the prefix “P”).<\/p>\n

Bell+Gossett Xylem e3-SC4U (F2,P5)
\nLaing Ecocirc D5-38\/090B (F3,P6)
\nBell+Gossett Xylem e3-SC6N (F3.15,P4.5)
\nBell+Gossett Xylem e3-SC6S (F3.15,P4.5)
\nLaing Ecocirc D5 Solar 720B (F3.25,P4.5)
\nGrundfos 15-10 (F4,P2.75)
\nGrundfos 15-100 (F4.25,P18)
\nLaing Ecocirc D5-38\/720B (F4.25,P9.5)
\nGrundfos 15-58 (Lo) (F5,P7)
\nTaco 009 (F5.25,P17.5)
\nBell+Gossett Xylem NRF-9F\/LW (F6,P4.5)
\nTaco 008 (F6.3,P7.25)
\nTaco 00R (Lo) (F6.75,P7.5)
\nTaco 00R (Med) (F8,P9.25)
\nBell+Gossett Xylem NBF-25 (Lo) (F8.5,P6)
\nGrundfos 15-42 (F8.5,P7.5)
\nGrundfos 15-58 (Hi) (F8.5,P9.5)
\nTaco 00R (Hi) (F9,P10.75)
\nGrundfos 26-120 (F9.5,P19)
\nTaco 0010 (Lo) (F10.75,P4.25)
\nBell+Gossett Xylem NRF-22 (F11,P7.5)
\nTaco 007 (F11.625,P4.875)
\nBell+Gossett Xylem NBF-25 (Hi) (F12.5,P9)
\nBell+Gossett Xylem NBF-36 (Lo) (F13,P12.5)
\nTaco 0010 (Med) (F13,P4.75)
\nGrundfos 26-96 (F14,P15)
\nTaco 0010 (Hi) (F14.75,P5.25)
\nTaco 0011 (F15,P15.5)
\nTaco 0014 (F15,P11.5)
\nGrundfos 43-44 (Lo) (F15.5,P5)
\nGrundfos 26-64 (F16,P12.25)
\nGrundfos 26-99 (Hi) (F16,P15)
\nGrundfos 26-99 (Lo) (F16,P12.25)
\nGrundfos 26-99 (Med) (F16,P14)
\nBell+Gossett Xylem NBF-45 (Lo) (F16.5,P10)
\nGrundfos 26-99 (F16.75,P16)
\nTaco 0013 (F17,P16.75)
\nBell+Gossett Xylem NBF-36 (Hi) (F18.5,P17)
\nBell+Gossett Xylem NRF-33 (F18.5,P6)
\nGrundfos 26-116 (F19,P18.5)
\nGrundfos 43-75 (F20.5,P12.5)
\nBell+Gossett Xylem NBF-45 (Hi) (F22.5,P13.75)
\nTaco 0012 (F22.5,P7)
\nTaco 2400-30 (F28.75,P14.5)
\nGrundfos 43-44 (Hi) (F31.5,P7)<\/p>\n

Currently the calculator includes the following piping options:<\/p>\n

Copper 3\/8″ – M (light – domestic water)
\nCopper 1\/2″ – M (light – domestic water)
\nCopper 3\/4″ – M (light – domestic water)
\nCopper 1″ – M (light – domestic water)
\nCopper 1-1\/4″ – M (light – domestic water)
\nCopper 1-1\/2″ – M (light – domestic water)
\nCopper 1\/4″ – L (mid – below ground)
\nCopper 3\/8″ – L (mid – below ground)
\nCopper 1\/2″ – L (mid – below ground)
\nCopper 3\/4″ – L (mid – below ground)
\nCopper 1″ – L (mid – below ground)
\nCopper 1-1\/4″ – L (mid – below ground)
\nCopper 1-1\/2″ – L (mid – below ground)
\nPEX 3\/8″
\nPEX 1\/2″
\nPEX 5\/8″
\nPEX 3\/4″
\nPEX 1″
\nPEX 1-1\/4″
\nPVC 1\/2″ 40
\nPVC 3\/4 40
\nPVC 1″ 40
\nPVC 1-1\/4″ 40
\nPVC 1-1\/2″ 40
\nPVC 2″ 40
\nPVC 2-1\/2″ 40
\nPVC 3″ 40
\nPVC 4″ 40
\nPVC 5″ 40
\nPVC 6″ 40
\nPVC 8″ 40
\nBlack Iron Pipe 1\/8” – Sch 40
\nBlack Iron Pipe 1\/4” – Sch 40
\nBlack Iron Pipe 3\/8” – Sch 40
\nBlack Iron Pipe 1\/2” – Sch 40
\nBlack Iron Pipe 3\/4” – Sch 40
\nBlack Iron Pipe 1” – Sch 40
\nBlack Iron Pipe 1-1\/4” – Sch 40
\nBlack Iron Pipe 1-1\/2” – Sch 40
\nBlack Iron Pipe 2” – Sch 40
\nBlack Iron Pipe 2-1\/2” – Sch 40
\nBlack Iron Pipe 3” – Sch 40
\nBlack Iron Pipe 3-1\/2” – Sch 40
\nBlack Iron Pipe 4” – Sch 40
\nBlack Iron Pipe 5” – Sch 40
\nBlack Iron Pipe 6” – Sch 40
\nBlack Iron Pipe 8” – Sch 40<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

This calculator determines the flow and pressure relationship of a piping or plumbing system and an associated pump.\u00a0 It has been designed to mainly support those who are designing hot water heating systems who are trying to determine the right size pipe or tube and the right circulator pump. The system flow rate can be … <\/p>\n

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